Method of making phone calls from a locked out handheld electronic device and a handheld electronic device incorporating the same

ABSTRACT

Outgoing phone calls can be made on a handheld electronic device that has been locked to prevent unauthorized use through an override that permits the making of outgoing phone calls while applications additional to the phone application remain locked. In some embodiments, the override can not be selected unless first enabled by a remotely generated enable override authorization signal.

CROSS REFERENCE TO RELATED APPLICATION

This application is a continuation of U.S. patent application Ser. No.10/988,270, filed Nov. 12, 2004, entitled METHOD OF MAKING PHONE CALLSFROM A LOCKED OUT HANDHELD ELECTRONIC DEVICE AND A HANDHELD ELECTRONICDEVICE INCORPORATING THE SAME.

BACKGROUND OF THE INVENTION

1. Field of the Invention

Aspects of this invention relate to arrangements for permitting limitedaccess to the applications in a handheld electronic device for makingoutgoing phone calls while maintaining protection against unauthorizedaccess to other applications and their stored data.

2. Background Information

As the functionality of handheld electronic devices continues to expand,more and more data of the user enterprise become potentially availablevirtually anywhere. This has raised serious concerns among securitypersonnel of such enterprises. A common response has been to incorporatea timeout security function into the handheld electronic device that isactivated after a selected interval of nonuse, for example two minutes,or upon activation by the user. All operation of the device, includingmaking of outgoing phone calls is blocked; however, incoming phone callscan be received and answered. In order to place a call or perform anyother operation (other than receiving incoming phone calls), the lockoutmust be deactivated. A security code or password must be entered todeactivate the lockout for further operation of the device. Thissecurity feature protects data stored and/or available through thedevice should it become lost, stolen, or otherwise fall into the wronghands. However, this lockout feature can inconvenience the user inmaking phone calls at it requires entry of the security code. The timedlockout can be selectively imposed over a wireless connection by asupervisor or it can be set in the device and protected by a higherlevel password.

SUMMARY OF THE INVENTION

Various embodiments of the invention are directed to a handheldelectronic device and a method of operation that balance securityconcerns and convenience of use. In accordance with aspects of theinvention, the handheld electronic device has a phone application andother applications that may be locked out except for the receipt ofincoming phone calls. An override is selectable to override the lockoutto the extent that outgoing phone calls may be made while the otherapplications remain locked out. The override must be enabled before itcan be selected, and it can only be enabled when the lockout isdeactivated. In accordance with some embodiments of the invention, theoverride can only be enabled if it is first authorized by an enableoverride authorization signal transmitted over a wireless connectionfrom a remote supervisory position.

Other aspects of the invention are directed to arrangements andprocedures for making outgoing phone calls while the lockout isoverridden. For instance, such outgoing calls can be made from a hotlist that can be: a list of most recent phone calls, a list of mostfrequently called phone numbers or a call log style list. Alternatively,or in addition, outgoing phone calls can be made during override of thelockout through speed dialing in which certain keys of the userinterface keyboard are programmed to dial preselected phone numbers.

More particularly, aspects of the invention are directed to a handheldelectronic device that comprises a phone application for making outgoingphone calls and for receiving incoming phone calls and at least oneadditional application. A lockout locks out the making of outgoing phonecalls and all additional applications while allowing the receipt ofincoming phone calls when the lockout is activated. An override isselectable to allow the making of outgoing phone calls by the phoneapplication while maintaining the lockout of all of the additionalapplications when the lockout is activated.

In addition, aspects of the invention are directed more particularly toa method of operating a handheld electronic device that has a phoneapplication and other applications that comprises selectively lockingout the other applications and the making of outgoing phone calls by thephone application while allowing receipt of incoming phone calls andoverriding the locking out of the making of outgoing phone calls by thephone application while maintaining the lockout of the otherapplications, and making an outgoing phone call while the otherapplications remain locked out.

BRIEF DESCRIPTION OF THE DRAWINGS

A full understanding of the invention can be gained from the followingdescription of the preferred embodiments when read in conjunction withthe accompanying drawings in which:

FIG. 1 is a front view of a handheld electronic device incorporating theinvention.

FIG. 2 is a functional diagram of the pertinent functions of thehandheld electronic device of FIG. 1.

FIGS. 3 a through 3 m are screens that appear on the display of thehandheld electronic device of FIG. 1 illustrating operation of variousembodiments of the invention.

FIG. 4 is a flowchart illustrating aspects of the invention directed tomaking a call from a handheld electronic device that has a lockout andan override for the lockout.

FIG. 5 is a flowchart showing aspects of the invention directed to theselection of the override which allows outgoing calls to be made whilethe device is locked.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 illustrates a handheld electronic device 1 incorporating thevarious aspects of the invention. Such a handheld electronic device 1has a user interface 3 that includes a keyboard 5 with a number of keys7, a thumbwheel 9, an escape button 11 and a display 13. The keys 7,thumbwheel 9, and escape button 11, allow the user to input, select andmanipulate, text, data and functions that are represented on the display13, as is known.

The functional structure of the handheld electronic device 1 isillustrated in FIG. 2. A transmitter/receiver 15 gives the device 1 thecapability of wireless communication with other devices such as a remotesupervisory station 17 through various wireless networks such as a cellphone network (i.e. GSM/GPRS, CDMA, or IDEN), wireless internet,wireless intranet and the like, that permit the device to transmit andreceive voice and data. These networks can include connection to theworld wide web. The handheld electronic device has a phone application21 for making outgoing and receiving incoming phone calls. It may alsohave any number of additional applications 23 such as an address book25, a text messaging application 27 and others, up through anapplication 29 designated as “n” in FIG. 2. These applications as wellas the transmitter/receiver 15 are controlled and sequenced by thecontrol 31 in response to commands received from the user interface 3.

As discussed above, enterprises that deploy handheld electronic devices1 have a strong interest in protecting the data and access to theirsystems possible through the device 1. Accordingly, a lockout function33 is provided that locks out access to the phone application 21 andadditional applications 23 through the user interface 3 when activated.Typically, the lockout function is activated automatically upon theexpiration of a selected time interval after the last user input throughthe user interface 3. The duration of the period for activation of thelockout is not important to the various aspects of this invention;however, the time period can vary over a wide range with any particulartime interval being selected to meet the needs of a particularenterprise. As examples only, the time interval could be anywhere fromless than a minute up to even 60 minutes. The shorter time periods canbe frustrating to the user while the longer time periods reduce theprotection provided by the feature. A suitable comprise is an intervalof about one to two minutes.

The user can or cannot be given the ability to turn on and off thelockout 33. Where the user is not given this option, the lockout can beset at the device, or by a supervisor at the remote station 17 throughthe wireless connection 19.

When the user desires to use the device 1 while the lockout isactivated, a security code such as a password must be entered throughthe user interface 3. It is typically not necessary to deactivate thelockout 33 in order to receive incoming phone calls. However, users havefound it frustrating to have to enter the password in order to makeoutgoing phone calls. In accordance with aspects of this invention, anoverride 35 is provided that allows the user to place outgoing phonecalls without the need to enter a security code yet still maintainlockout of the additional applications 23. Preferably, the user is giventhe option of whether or not to select the override 35. For instance, ifthe device 1 is going to be unattended, the user may choose to deselectthe override. Some enterprises might be selective in whether or when toallow the users of certain of its devices to have the override option.Thus, in accordance with other aspects of the invention, the enterprisecan require that a supervisor transmit to the specific device 1, such asfrom the remote station 17, an enable override authorization signal thatmust be received by the device before the user is able to select theoverride 35. In other words, the override must first be authorized by asupervisor before it is available for selection by the user.

FIGS. 3 a through 3 m further illustrate aspects of the invention. FIG.3 a illustrates the home screen 37 that appears on the display 13 of thehandheld electronic device 1. This home screen 37 displays icons 39representing the various functions available to the user. A particularfunction is implemented by rotating the thumbwheel 9 to scroll throughthe icons 39. Each icon is sequentially highlighted during scrolling. Inexemplary home screen, the options icon 41 is highlighted. The optionsfunction is called up by pressing inward on the thumbwheel 9. Thisbrings up the options menu that is illustrated in FIG. 3 b where thesecurity option is shown highlighted by scrolling with the thumbwheel 9.Upon selection of the security option, the security submenu illustratedin FIG. 3 c is displayed. As will be noted, the last entry is “AllowOutgoing Calls While Locked”. This is the override, which in FIG. 3 c isshown by the “NO” entry as not being selected. The user may then scrolldown to that selection as shown by the highlight in FIG. 3 c. Pressingof the thumbwheel then brings up the pull down menu shown in FIG. 3 dwhere the “Change Option” is shown as highlighted. Pressing thethumbwheel then gives the user the option to select “YES” as shown inFIG. 3 e, which brings back the pull down menu where the change inoption can be saved as shown in FIG. 3 f. The override has now beenselected.

Upon time out of the lockout, the security lock screen illustrated inFIG. 3 g is presented on the display 13. Any operation of the userinterface 3 such as by rotating or pressing the thumbwheel 9 oractuating any of the keys 7, brings up the security lock screenillustrated in FIG. 3 h. The user can gain access to full operation ofthe device 1 by selecting “Unlock” and entering the required securitycode such as a password. The user can always make an emergency call to apreselected emergency number such as 911 even when the lockout isactivated by selecting “Emergency Call”. Alternatively, as the overridehas been selected, the user can place an outgoing call using the phoneapplication 23 while maintaining the lock on the other applications 25by selecting “Place Call”. This brings up a place call phone screen asshown in FIG. 3 i. The user can then manually dial in a number using thekeyboard 5. Clicking on the selected number brings up the pull down menushown from which the outgoing call can be initiated by clicking on thenumber which is highlighted. As shown by the pull down menu, the userhas the option of checking the voicemail or choosing to deactivate thelockout (and therefore enter their password) such as where it may benecessary to check the address book application 25.

In accordance with another aspect of the invention, the phone screen candisplay a “hot list” such as shown in FIG. 3 j from which a number canbe highlighted and called as previously described. Various types of “hotlists” can be used. For instance, the hot list can list a selectednumber of the most recently called phone numbers, a list of the mostfrequently called numbers, alphabetical list, or a call log list.Alternatively, the user can make a call in override using the commonspeed dial option in which particular keys on the keyboard areprogrammed to dial a selected number when actuated. Basic numeric phonenumbers can also be manually entered to be dialed.

While the call is being placed with override selected, the screen shownin FIG. 3 k is displayed. As noted on the right hand side, the soundvolume can be adjusted by rotating the thumbwheel 9. If the user has achange of mind and wishes to terminate the call while calling, thethumbwheel is pushed in which calls the pull down menu shown in FIG. 31from which “End Call” can be selected. When the call is connected, thecall connected screen shown in FIG. 3 m is displayed. The call can beended in the manner just described.

FIG. 4 illustrates a flowchart 43 for aspects of the invention directedto making a call from the handheld device that can be locked out andhaving the override which allows outgoing calls to be made while thelockout is activated. When a user tries to make a call at 45 adetermination is made at 47 as to whether the device is locked out, thatis, whether the lockout 33 has been activated. If not, the user canproceed to make a call at 49. However, if the device is locked out at47, then a determination is made at 51 as to whether the outgoing callsare allowed while locked out. For instance, whether the override 35 hasbeen selected. If so, the call can be made at 49. If the override hasnot been selected for the locked out device, then as indicated at 53, nocall can be made and optionally, an alert can be generated, forinstance, visually and/or aurally. The user can still make a call underthese circumstances by deactivating the lockout through entry of thepassword.

FIG. 5 illustrates a flowchart 55 for selecting the option to allowoutgoing calls while the handheld electronic device 1 is locked. Theprocess begins by the user employing the user interface 3 to selectsecurity options, as indicated at 57. Within the security options, theoption to “ALLOW OUTGOING CALLS WHILE LOCKED” (AOCWL) is selected at 59.This will indicate to the user whether the AOCWL has been selected toallow outgoing calls while locked out or not. If the user decides tochange the selection of AOCWL, the selection is made at 63. The user isthen given the option of saving the change at 65 before continuing at67. When the user chooses to save the change, it is implemented at 69.In another embodiment, the mere selection of the override (AOCWL) at 59can automatically effect the toggling of the function with an automaticsave.

While specific embodiments of the invention have been described indetail, it will be appreciated by those skilled in the art that variousmodifications and alternatives to those details may be developed inlight of the overall teachings of the disclosure. Accordingly, theparticular arrangements disclosed are meant to be illustrative only andnot limiting as to the scope of the invention which is to be given thefull breadth of the claims appended and any and all equivalents thereof.

The invention claimed is:
 1. A handheld electronic device comprising: aphone application for making outgoing and receiving incoming phonecalls; at least one additional application implemented through the userinterface; a lockout for locking out the making of outgoing phone callsby the phone application and any of the additional applications whileallowing the receipt of incoming phone calls; and an override, madeavailable for selection by an enable override authorization signaltransmitted to the handheld electronic device from a remote supervisorylocation, upon being made available and having been selected for makingoutgoing phone calls by the phone application while maintaining thelockout of the additional applications when the lockout is activated. 2.The handheld electronic device of claim 1 wherein the phone applicationfurther comprises a hot list from which outgoing phone calls are madewith the lockout activated and the override selected.
 3. The handheldelectronic device of claim 2 wherein the hot list is selected from agroup consisting of: a list of frequently called phone numbers, a listof most recently called phone numbers, an alphabetical list of mostfrequently called phone numbers, and a call log list.
 4. The handheldelectronic device of claim 1 further comprising: a user interfaceincluding a keyboard having keys; and wherein the phone applicationincludes a speed dial option by which selected keys are programmed toinitiate the outgoing phone calls to selected phone numbers whenactuated, the speed dial option being usable when the lockout isactivated and the override is selected.
 5. The handheld electronicdevice of claim 4 wherein the lockout must be deactivated for theoverride to be enabled.
 6. The handheld electronic device of claim 5wherein the lockout has a security code that must be entered before thelockout is deactivated.
 7. The handheld electronic device of claim 6wherein the lockout is activated when the user interface does notreceive a user input for a predetermined period of time.
 8. The handheldelectronic device of claim 4 wherein the user interface comprises akeyboard having keys that are sequentially actuated to dial a selectedphone number when the lockout is activated and the override is selected.9. A method of operating a handheld electronic device having a phoneapplication and additional applications, the method comprising the stepsof: selectively locking out the additional applications and the makingof outgoing phone calls by the phone application while allowing receiptof incoming phone calls; receiving on the handheld from a remotesupervisory location an enable override authorization signal; responsiveto the receiving, making available for selection an override option; andoverriding the locking out of making outgoing phone calls by the phoneapplication while maintaining the lockout of the additional applicationsby selecting the override option.
 10. The method of claim 9 whereinmaking an outgoing phone call while the additional applications remainlocked out comprises the step of presenting the user with a hot listfrom which the outgoing phone call is made.
 11. The method of claim 10wherein the hot list is selected from a group comprising: a list of mostrecent phone numbers called, a list of most frequent phone numberscalled, an alphabetical list of most frequently used phone numbers and acall list.
 12. The method of claim 10 wherein presenting the user withthe hot list comprises the step of displaying the hot list on a displayscreen.
 13. The method of claim 9 wherein the making of the outgoingphone call while the additional applications are locked out comprisesthe step of providing a number of keys, programming each of the numberof keys with the selected phone number, and dialing the selected phonenumber when a selected one of the number of keys is actuated.
 14. Themethod of claim 9 wherein overriding the locking out of outgoing phonecalls requires that the override be enabled before it is selected, andwherein the override can only be enabled when the lockout isdeactivated.
 15. A method of protecting data belonging to an enterprisevia access through at least one handheld electronic device, the handheldelectronic device having a phone application and additionalapplications, the method comprising the steps of: deploying at least onehandheld electronic device to an enterprise user; selectively lockingout the additional applications and the making of outgoing phone callsby the phone application while allowing receipt of incoming phone calls;an enterprise supervisor providing an enable override authorizationsignal; receiving on the handheld from a remote supervisory location anenable override authorization signal; responsive to the receiving,making available for selection an override option; and overriding thelocking out of making outgoing phone calls by the phone applicationwhile maintaining the lockout of the additional applications byselecting the override option; and the enterprise user making anoutgoing phone call while the additional applications remain locked out.16. The method of claim 15 wherein, prior to the step of the enterprisesupervisor providing an enable override authorization signal, the methodincludes the further step of the enterprise user requesting enablementof the override authorization signal.
 17. The method of claim 15 whereinmaking an outgoing phone call while the additional applications remainlocked out comprises the step of presenting the user with a hot listfrom which the outgoing phone call is made.
 18. The method of claim 17wherein the hot list is selected from a group comprising: a list of mostrecent phone numbers called; a list of most frequent phone numberscalled; and an alphabetical list of most frequently used phone numbersand a call list.
 19. The method of claim 17 wherein presenting the userwith the hot list comprises the step of displaying the hot list on adisplay screen.
 20. The method of claim 15 wherein the making of theoutgoing phone call while the additional applications are locked outcomprises the step of providing a number of keys, programming each ofthe number of keys with the selected phone number, and dialing theselected phone number when a selected one of the number of keys isactuated.